EP2092971B1 - Vorrichtung zum Sieben von Bohrschlamm - Google Patents

Vorrichtung zum Sieben von Bohrschlamm Download PDF

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Publication number
EP2092971B1
EP2092971B1 EP09006866A EP09006866A EP2092971B1 EP 2092971 B1 EP2092971 B1 EP 2092971B1 EP 09006866 A EP09006866 A EP 09006866A EP 09006866 A EP09006866 A EP 09006866A EP 2092971 B1 EP2092971 B1 EP 2092971B1
Authority
EP
European Patent Office
Prior art keywords
basket
feed
screen
flow
filtrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP09006866A
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English (en)
French (fr)
Other versions
EP2092971A1 (de
EP2092971B2 (de
Inventor
Marshall Graham Bailey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Axiom Process Ltd
Original Assignee
Axiom Process Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33554143&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2092971(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB0313521A external-priority patent/GB0313521D0/en
Priority claimed from GB0329920A external-priority patent/GB0329920D0/en
Application filed by Axiom Process Ltd filed Critical Axiom Process Ltd
Publication of EP2092971A1 publication Critical patent/EP2092971A1/de
Application granted granted Critical
Publication of EP2092971B1 publication Critical patent/EP2092971B1/de
Publication of EP2092971B2 publication Critical patent/EP2092971B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
    • E21B21/065—Separating solids from drilling fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
    • B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
    • B01D33/0307—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with bag, cage, hose, tube, sleeve or the like filtering elements
    • B01D33/033—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with bag, cage, hose, tube, sleeve or the like filtering elements arranged for outward flow filtration
    • B01D33/0338—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with bag, cage, hose, tube, sleeve or the like filtering elements arranged for outward flow filtration open ended
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
    • B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
    • B01D33/0346—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with flat filtering elements
    • B01D33/0376—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with flat filtering elements supported
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/35—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
    • B01D33/37—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in parallel connection
    • B01D33/39—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in parallel connection concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B07B13/16—Feed or discharge arrangements

Definitions

  • the present invention relates to vibratory screening apparatus suitable for use with drilling fluids, mineral processing, classification, and dewatering, and the like.
  • an initial screen assembly with a mesh size of around 10 to 80 (wires per inch), for example, about 20, and the first and second screen assemblies would have a mesh size of around 40 to 325, conveniently 100 to 250 for example about 200.
  • the feed is passed only through the initial coarse screen.
  • Fig. 1 shows schematically one embodiment of a vibratory screen apparatus 1 of the invention with an outer housing (indicated schematically) 2, in which is mounted on springs 3, a basket 4.
  • the basket is generally box shaped with pairs of circumferentially extending inwardly projecting flanges 5 height on the basket side walls 6, for supporting respective ones of a stack 7 of screen assemblies 8 separated by flow directing trays 9.
  • a vibrator unit 10 is secured to the top 11 of the basket. (Alternatively, the vibrator 10 could be mounted on a side of the basket 4, or incorporated into or within the structure of the basket 4.
  • the interior 12 of the basket 4 is divided into a series of levels 13 between neighbouring screen assemblies 8 and flow directing trays 9.
  • Figs 2A /B, 3A/B and 4A/B show different configurations of the distributor 15 for providing different feed flow arrangements through the screen assemblies 8, which are indicated as A, B and C, respectively, in Figs 2 to 5 .
  • FIG 2A shows the inside passage 17 and interior 12 of the basket 14, with an upper flap valve 20' raised to open an upper connecting opening 19' connecting the passage 17 and first level 13 1 above the upper flow deflector tray 9'.
  • An intermediate flap valve 20'' is raised to close an intermediate connecting opening 19'' connecting the passage 17 and second level 13 2 between the upper and lower flow deflector trays 9', 9'' whilst simultaneously opening an intermediate level opening 21' in passage 17.
  • a lower flap valve 20''' is lowered to open a lower connecting opening 19''' connecting the passage 17 and a fourth level 134 below the lower flow deflector tray 9''.
  • Fig. 4A shows the distributor in the inside passage 17 configured so that the upper flap valve 20' is raised as before.
  • the intermediate flap valve 20" is lowered so as to open the intermediate connecting opening 19'' whilst simultaneously closing the intermediate level passage opening 21' and the lower flap 20''' is raised to close the lower connecting opening 19''' whilst opening the bottom passage opening 21'''.
  • That part 23' of the filtrate 23 from the coarse screen 8' passing into the inside passage 17, is directed onto the first screen 8'' and then out of the bottom opening 21'' of the inside passage 17, by-passing the second screen 8'''.
  • the outside passage 18 is configured as in Fig.
  • That part 38 of the fluid 33 retained on the second screen 36 is passed through the second deck screen 36 (the solid particulate material 49 retained thereon being "walked up” the screen 36 in the usual way - see Fig. 8B ), as indicated by the double headed arrows 50.
  • This part 50 of the fluid flow 33 is then passed through a second deck end wall opening 51 and down a central vertically extending conduit 52 underneath the deflector plates 43.
  • a closure panel 53 seals a third deck end wall opening 54, below the second deck end wall opening 51, thereby preventing this part 50 of the fluid flow 33 from entering the third deck 47.
  • the module 28 as described above, may be readily reconfigured for serial operation whereby the whole of the fluid is passes through each one of the first, second and third deck screens, 31, 36, 46, as shown in Figs. 9-10 .
  • the weir 39 is replaced by a high wall 57 which ensures that the whole of the fluid flow 33 is passed through the second deck screen 36.
  • the fluid flow 58 then passes out through the second deck end wall opening 51 into the central vertical conduit 52.
  • the bottom opening 55 is sealed by a closure plate 59 whilst the closure panel 53 of the third deck end wall opening 54 is opened so that the fluid flow 58 is routed from the central vertical conduit 52 into the third deck 47 and passed through the screen 46 thereof into the sump 56.
  • Figs 11 to 13 show a vibratory screening apparatus 1 of the invention with a generally conventional form of static outer housing 2, in which is mounted on springs 3, and a basket 4 with a vibrator device 10.
  • the static housing 2 has a base support 60 which includes a sump 61 for receiving filtrate 62 from the basket 4, and a feed device support portion 63 mounting a feed device 64.
  • the feed device 64 comprises a header tank 65 for receiving a liquid and solids mixture feed 66, and having a feed chute 67 extending out therefrom above the basket 4 so as to pass said feed 66 into the basket 4.
  • a static flow distributor 24 mounted on the header tank portion 65 of the static housing 2, and coupled to the floating basket 4 via flexible conduits 26.
  • the flow distributor 15 is incorporated in the floating basket 4.

Landscapes

  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Filtration Of Liquid (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Fertilizers (AREA)
  • Treatment Of Sludge (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Earth Drilling (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Eye Examination Apparatus (AREA)
  • Noodles (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Claims (15)

  1. Korb (4), geeignet für eine Verwendung in einer Vibrationssiebvorrichtung (1), zur Verwendung beim Entfernen von Feststoffen aus einem zugeführten Gemisch aus Flüssigkeit und Feststoffen, wobei der Korb (4) einen Stapel von wenigstens drei Siebbaugruppen (8', 8", 8''') anbringt, wobei die aufeinandergeschichteten Siebbaugruppen durch einen jeweiligen Durchfluss-Leitboden (9', 9") voneinander getrennt sind,
    wobei der Stapel von wenigstens drei Siebbaugruppen (8', 8", 8''') mit einem Durchflussverteiler (15) versehen ist, der so geformt und angeordnet ist, dass er zwischen mehreren unterschiedlichen Durchfluss-Leitkonfigurationen umgeschaltet werden kann, einschließlich von:
    a) einer Parallelverarbeitungskonfiguration, bei welcher der Durchflussverteiler ein Filtrat von einer primären oberen Siebbaugruppe (8') empfängt und das Filtrat in wenigstens einen ersten Zufuhrstrom und einen zweiten Zufuhrstrom teilt, die Zufuhrströme auf eine jeweilige der ersten (8'') bzw, der zweiten (8''') Siebbaugruppe leitet und das Filtrat von den jeweiligen Durchfluss-Leitböden (9") empfängt, und
    b) einer Intensivsiebungskonfiguration, bei der die Gesamtheit des Filtrats von einer primären oberen Siebbaugruppe (8') auf eine erste Siebbaugruppe (8'') geleitet wird und die Gesamtheit des Filtrats von der ersten Siebbaugruppe auf eine zweite Siebbaugruppe (8''') geleitet wird.
  2. Korb (4) nach Anspruch 1, wobei die mehreren Durchfluss-Leitkonfigurationen eine Konfiguration mit eingeschränkter Zufuhrkapazität einschließen, bei der die Gesamtheit der Zufuhr auf nur eine von der ersten (8'') und der zweiten (8''') Siebbaugruppe geleitet wird und wobei das Filtrat von derselben ummittelbar aus der Vorrichtung (1) abgelassen wird, ohne durch die andere von der ersten und der zweiten Siebbaugruppe (8'',8''') hindurchzugehen.
  3. Korb nach Anspruch 1 oder Anspruch 2, wobei wenigstens die primäre Siebbaugruppe (8') eine Maschengröße hat, die sich von wenigstens einer anderen Siebbaugruppe (8",8''') unterscheidet.
  4. Korb nach einem der Ansprüche 1 bis 3, wobei die erste und die zweite Siebbaugruppe (8'',8''') die gleiche Maschengröße haben.
  5. Korb nach einem der Ansprüche 1 bis 4, wobei der Durchflussverteiler (15) mehrere Durchflusswege definiert, die mit Durchfluss-Regeleinrichtungen (20), für ein selektives Öffnen oder wenigstens teilweises Schließen von unterschiedlichen Durchgängen (17,18), versehen sind.
  6. Korb nach einem der Ansprüche 1 bis 5, wobei wenigstens eine Durchfluss-Regeleinrichtung (20) aus der Gruppe ausgewählt ist, die im Wesentlichen aus Klappenventilen (20', 20", 20"'), Hülsenschiebern, Kegelventilen und Verschlussplatten besteht.
  7. Korb nach Anspruch 5, wobei wenigstens eine Durchfluss-Regeleinrichtung (20) aus einem Wehr (39) besteht, das dafür geformt und angeordnet ist, eine Zufuhr in einen ersten Zufuhrstrom, der über das Wehr hinweggeht, und einen zweiten Zufuhrstrom, der nicht über das Wehr hinweggeht, zu teilen.
  8. Korb nach Anspruch 7, wobei das Wehr (39) ein Wehr mit veränderlicher Höhe umfasst.
  9. Korb nach einem der Ansprüche 5 bis 8, wobei der Durchflussverteiler (15) wenigstens eine Wand einschließt, die dafür geformt und angeordnet ist, mehrere seitlich benachbarte Durchflusswege zu definieren.
  10. Korb nach einem der Ansprüche 1 bis 9, wobei der Durchflussverteiler (15) an dem Korb (4) angebracht ist.
  11. Korb nach einem der Ansprüche 1 bis 9, wobei der Durchflussverteiler (15) durch flexible Leitungen an den Korb (4) gekoppelt ist.
  12. Korb nach einem der Ansprüche 1 bis 11, wobei die Durchfluss-Leitböden (9', 9") so geformt und angeordnet sind, dass im Wesentlichen die Gesamtheit des Filtrats von einer Siebbaugruppe (8) unmittelbar über den Durchfluss-Leitboden durch denselben abgefangen werden kann, wodurch die Zufuhr durch den Durchflussverteiler (15) im Wesentlichen vollständig in einen ersten und einen zweiten Zufuhrstrom zu einer jeweiligen der ersten bzw. der zweiten Siebbaugruppe (8",8''') geteilt werden kann.
  13. Vibrationssiebvorrichtung (1) zur Verwendung beim Entfernen von Feststoffen aus einem zugeführten Gemisch aus Flüssigkeit und Feststoffen, wobei die Vorrichtung einen Korb (4) nach Anspruch 1 umfasst und ferner ein feststehendes äußeres Gehäuse (2) umfasst, wobei das Gehäuse Folgendes umfasst: eine Basisstütze (60), die dafür geformt und angeordnet ist, wenigstens einen Korb (4) auf eine schwimmende Weise anzubringen, so dass er, bei Anwendung der Vorrichtung, in Vibration versetzt werden kann durch eine Vibrationseinrichtung (10), die dafür geformt und angeordnet ist, den Korb (4) in Vibration zu versetzen, wobei die Basisstütze (60) einen Sammelbehälter (61) zum Aufnehmen des Filtrats von dem Korb (4) hat und das Gehäuse (2) eine Zufuhreinrichtung (64) hat, die dafür geformt und angeordnet ist, das zugeführte Gemisch aus Flüssigkeit und Feststoffen zu dem in der Basisstütze (60) angebrachten Korb (4) zu leiten.
  14. Vibrationssiebvorrichtung (1) nach Anspruch 13, wobei der Korb einen Teil einer Mehrkorbbaugruppe bildet, die mehrere der Körbe umfasst, angebracht in dem feststehenden Gehäuse, und wobei das Gehäuse eine Zufuhr-Verteilungseinrichtung hat, die dafür geformt und angeordnet ist, das zugeführte Gemisch aus Flüssigkeit und Feststoffen zu wenigstens einem der mehreren Körbe zu leiten.
  15. Vibrationssiebvorrichtung (1) nach Anspruch 13, wobei der Korb (4) ferner eine seitliche Trennwand (68) einschließt, die unabhängige Zufuhr-Verarbeitungsmodule (69, 70) definiert, und wobei das Gehäuse eine Zufuhr- Verteilungseinrichtung (71-74) hat, die dafür geformt und angeordnet ist, das zugeführte Gemisch aus Flüssigkeit und Feststoffen zu wenigstens einem der Korbzufuhr-Verarbeitungsmodule (69, 70) zu leiten.
EP09006866.9A 2003-06-12 2004-06-14 Vorrichtung zum Sieben von Bohrschlamm Expired - Lifetime EP2092971B2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0313521A GB0313521D0 (en) 2003-06-12 2003-06-12 Screening apparatus
GB0329920A GB0329920D0 (en) 2003-12-24 2003-12-24 Screening apparatus
EP04736760A EP1631367B1 (de) 2003-06-12 2004-06-14 Siebvorrichtung

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP04736760.2 Division 2004-06-14
EP04736760A Division EP1631367B1 (de) 2003-06-12 2004-06-14 Siebvorrichtung

Publications (3)

Publication Number Publication Date
EP2092971A1 EP2092971A1 (de) 2009-08-26
EP2092971B1 true EP2092971B1 (de) 2011-02-09
EP2092971B2 EP2092971B2 (de) 2018-06-20

Family

ID=33554143

Family Applications (3)

Application Number Title Priority Date Filing Date
EP09006866.9A Expired - Lifetime EP2092971B2 (de) 2003-06-12 2004-06-14 Vorrichtung zum Sieben von Bohrschlamm
EP04736760A Revoked EP1631367B1 (de) 2003-06-12 2004-06-14 Siebvorrichtung
EP07020020A Revoked EP1900412B1 (de) 2003-06-12 2004-06-14 Vorrichtung und Verfahren zum Sieben von Bohrschlamm

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP04736760A Revoked EP1631367B1 (de) 2003-06-12 2004-06-14 Siebvorrichtung
EP07020020A Revoked EP1900412B1 (de) 2003-06-12 2004-06-14 Vorrichtung und Verfahren zum Sieben von Bohrschlamm

Country Status (7)

Country Link
US (2) US7740761B2 (de)
EP (3) EP2092971B2 (de)
AT (3) ATE467451T1 (de)
DE (3) DE602004022665D1 (de)
DK (1) DK2092971T4 (de)
NO (2) NO335550B1 (de)
WO (1) WO2004110589A1 (de)

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Also Published As

Publication number Publication date
EP1900412A2 (de) 2008-03-19
NO335550B1 (no) 2014-12-29
EP2092971A1 (de) 2009-08-26
US7896162B2 (en) 2011-03-01
NO20060176L (no) 2006-03-06
NO20093476L (no) 2006-03-06
US20090308819A1 (en) 2009-12-17
US7740761B2 (en) 2010-06-22
ATE467451T1 (de) 2010-05-15
EP2092971B2 (de) 2018-06-20
EP1900412A3 (de) 2008-04-23
ATE497820T1 (de) 2011-02-15
DK2092971T3 (da) 2011-05-23
DE602004022665D1 (de) 2009-10-01
US20060144779A1 (en) 2006-07-06
DE602004031391D1 (de) 2011-03-24
DE602004027175D1 (de) 2010-06-24
DK2092971T4 (en) 2018-10-01
NO335738B1 (no) 2015-02-02
EP1631367B1 (de) 2009-08-19
WO2004110589A1 (en) 2004-12-23
EP1900412B1 (de) 2010-05-12
ATE439899T1 (de) 2009-09-15
EP1631367A1 (de) 2006-03-08

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